We live in West Africa as long term missionaries and highly recommend Demal200. My husband had a dormant case of Malaria and the product worked just as the documents informed us they would. He used the spray every 30 minutes for 12 hours and then all symptoms cleared. He has not had any issues with Malaria since. We also use this product as a prophylaxis for our entire family, including our baby who was 5 months old when we started. None of us have had any Malaria or any other side effects since starting its use. I'm so glad to finally have found a homeopathic prophylaxis that we can trust will not have long-term side effects. We are so thankful!